import Vue from 'vue'
import VueRouter from 'vue-router'
import { Dialog } from 'vant'
import store from '@/store'
Vue.use(VueRouter)

const routes = [
  {
    path: '/login',
    name: 'login',
    // 路由懒加载
    component: () => import('@/views/login/'),
    meta: { requiresAuth: false }
  },
  {
    path: '/search',
    name: 'search',
    component: () => import('@/views/search/'),
    meta: { requiresAuth: false }
  },
  {
    path: '/',
    component: () => import('@/views/layout/'),
    children: [{
      path: '', // 默认子路由
      name: 'home',
      component: () => import('@/views/home/'),
      meta: { requiresAuth: false }
    },
    {
      path: '/qa',
      name: 'qa',
      component: () => import('@/views/qa/'),
      meta: { requiresAuth: false }
    },
    {
      path: '/video',
      name: 'video',
      component: () => import('@/views/video/'),
      meta: { requiresAuth: false }
    },
    {
      path: '/my',
      name: 'my',
      component: () => import('@/views/my/'),
      meta: { requiresAuth: false }
    }
    ]
  },
  {
    path: '/article/:articleId',
    name: 'article',
    component: () => import('@/views/article/'),
    props: true,
    meta: { requiresAuth: false }
  },
  {
    name: 'user-profile',
    path: '/user/profile',
    component: () => import('@/views/user-profile'),
    meta: { requiresAuth: false }
  },
  {
    name: 'user-chat',
    path: '/user/chat',
    component: () => import('@/views/user-chat'),
    meta: { requiresAuth: true }
  }
]

const router = new VueRouter({
  routes
})

// to:要访问的页面路由信息
// from:来自哪个页面的路由信息
// next:放行的标记
router.beforeEach((to, from, next) => {
  // 校验登陆状态，提示用户
  if (to.meta.requiresAuth) {
    if (store.state.user) {
      return next()
    }
    // 没有登陆，校验登录状态，提示用户
    Dialog.confirm({
      title: '访问提示',
      message: '该功能需要登录才能访问，确认登录吗',
    }).then(() => {
      // 确认执行这里
      router.replace({
        name: 'login',
        query: {
          redirect: router.currentRoute.fullPath
        }
      })
    }).catch(() => {
      // 取消执行这里//取消了，停止路由导航
      next(false)
    })
  } else {
    // 不需要登陆，直接通过
    next()
  }
})
export default router
